Stihl MS261 / MS261C Performance Exhaust – Dyno Proven Gains

+19.25% Torque | +12.93% Horsepower | CNC-Machined in the USA

Delivers 19.25% additional torque, giving the Stihl MS261 stronger pull under load and noticeably better real-world cutting performance — especially when running longer bars or cutting dense hardwood.

💪 Dyno-Tested, Real-World Performance

This is not marketing hype. Dyno testing on a completely stock MS261 showed:

+19.25% increase in torque

+12.93% increase in horsepower

This added torque is delivered across the working RPM range, helping the saw maintain chain speed through the cut, recover faster under load, and reduce bog in tough wood.

Why Torque Matters

More torque means:

Faster acceleration into the cut

Stronger pull through hardwood

Better chain speed under sustained load

Reduced cut times and less operator fatigue

Engineered for Results

Optimized exhaust flow for improved throttle response, and cooler operating temperatures

Precision exit geometry designed to promote smoother exhaust flow and improved efficiency

OEM-style four-point mounting for stability and durability

Premium Build Quality

CNC-machined from aircraft-grade aluminum

Integrated spark arrestor for safety

Sleek, serviceable 3-piece design

Designed, machined, and tested in the USA

Installation & Support

Detailed installation instructions included, suitable for first-time modifiers

Direct support available for setup and tuning questions — we’re here to help

Compatibility

Fits Stihl MS261 and MS261C (carbureted and M-Tronic models)

What’s Included

MS261 Performance Muffler

Installation instructions

Direct contact for support

🛠️ Lifetime Warranty
🇺🇸 Proudly made in the USA by professionals who run these saws daily

Our Commitment to You

We’re committed to delivering products that perform as promised and stand up to real-world use. Our support doesn’t end at checkout — if you have questions about installation, tuning, or long-term performance, we’re here to help. Reach out anytime by message or phone and you’ll get direct, knowledgeable support.